/* USER CODE BEGIN Header */
/**
 ******************************************************************************
 * @file    stm32l4xx_hal_timebase_tim.c
 * @brief   HAL time base based on the hardware TIM.
 ******************************************************************************
 * @attention
 *
 * Copyright (c) 2024 STMicroelectronics.
 * All rights reserved.
 *
 * This software is licensed under terms that can be found in the LICENSE file
 * in the root directory of this software component.
 * If no LICENSE file comes with this software, it is provided AS-IS.
 *
 ******************************************************************************
 */
/* USER CODE END Header */

/* Includes ------------------------------------------------------------------*/
#include "stm32l4xx_hal.h"
#include "stm32l4xx_hal_tim.h"

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
TIM_HandleTypeDef htim17;
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/

/**
 * @brief  This function configures the TIM17 as a time base source.
 *         The time source is configured  to have 1ms time base with a dedicated
 *         Tick interrupt priority.
 * @note   This function is called  automatically at the beginning of program after
 *         reset by HAL_Init() or at any time when clock is configured, by HAL_RCC_ClockConfig().
 * @param  TickPriority: Tick interrupt priority.
 * @retval HAL status
 */
HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority)
{
    RCC_ClkInitTypeDef clkconfig;
    uint32_t uwTimclock;

    uint32_t uwPrescalerValue;
    uint32_t pFLatency;
    HAL_StatusTypeDef status = HAL_OK;

    /* Enable TIM17 clock */
    __HAL_RCC_TIM17_CLK_ENABLE();

    /* Get clock configuration */
    HAL_RCC_GetClockConfig(&clkconfig, &pFLatency);

    /* Compute TIM17 clock */
    uwTimclock = HAL_RCC_GetPCLK2Freq();

    /* Compute the prescaler value to have TIM17 counter clock equal to 1MHz */
    uwPrescalerValue = (uint32_t)((uwTimclock / 1000000U) - 1U);

    /* Initialize TIM17 */
    htim17.Instance = TIM17;

    /* Initialize TIMx peripheral as follow:

    + Period = [(TIM17CLK/1000) - 1]. to have a (1/1000) s time base.
    + Prescaler = (uwTimclock/1000000 - 1) to have a 1MHz counter clock.
    + ClockDivision = 0
    + Counter direction = Up
    */
    htim17.Init.Period = (1000000U / 1000U) - 1U;
    htim17.Init.Prescaler = uwPrescalerValue;
    htim17.Init.ClockDivision = 0;
    htim17.Init.CounterMode = TIM_COUNTERMODE_UP;
    htim17.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;

    status = HAL_TIM_Base_Init(&htim17);
    if (status == HAL_OK)
    {
        /* Start the TIM time Base generation in interrupt mode */
        status = HAL_TIM_Base_Start_IT(&htim17);
        if (status == HAL_OK)
        {
            /* Enable the TIM17 global Interrupt */
            HAL_NVIC_EnableIRQ(TIM1_TRG_COM_TIM17_IRQn);
            /* Configure the SysTick IRQ priority */
            if (TickPriority < (1UL << __NVIC_PRIO_BITS))
            {
                /* Configure the TIM IRQ priority */
                HAL_NVIC_SetPriority(TIM1_TRG_COM_TIM17_IRQn, TickPriority, 0U);
                uwTickPrio = TickPriority;
            }
            else
            {
                status = HAL_ERROR;
            }
        }
    }

    /* Return function status */
    return status;
}

/**
 * @brief  Suspend Tick increment.
 * @note   Disable the tick increment by disabling TIM17 update interrupt.
 * @param  None
 * @retval None
 */
void HAL_SuspendTick(void)
{
    /* Disable TIM17 update Interrupt */
    __HAL_TIM_DISABLE_IT(&htim17, TIM_IT_UPDATE);
}

/**
 * @brief  Resume Tick increment.
 * @note   Enable the tick increment by Enabling TIM17 update interrupt.
 * @param  None
 * @retval None
 */
void HAL_ResumeTick(void)
{
    /* Enable TIM17 Update interrupt */
    __HAL_TIM_ENABLE_IT(&htim17, TIM_IT_UPDATE);
}
